APA aipamena

Leon, A. A., & Leon, M. A. (2002). Database management systems.

Chicago Style aipamena

Leon, Alexis; Author, and Mathews; Author Leon. Database Management Systems. Chennai, Leon Vikas, 2002.

MLA aipamena

Leon, Alexis; Author, and Mathews; Author Leon. Database Management Systems. 2002.